Chris Bonell (London School of Hygiene and Tropical Medicine), G. J. Melendez-Torres (University of Exeter), Emily Warren (London School of Hygiene and Tropical Medicine)

Realist Trials and Systematic Reviews (eBook, PDF)

Rigorous, Useful Evidence to Inform Health Policy

• Format: PDF

Produktbeschreibung

This book describes an innovative approach to the evaluation of complex health interventions, assessing what interventions work, how and for whom. Rejecting the stalemate between trials and realist evaluation, it draws on the best of both. Randomised controlled trials and systematic reviews offer the least biased means of assessing intervention effects but tell us little scientifically about how interventions work. Policy-makers and practitioners are also not supported to decide which interventions are likely to achieve most benefits in their local contexts. Realists use other forms of evaluation and evidence synthesis exploring how intervention mechanisms interact with context to generate outcomes. But these approaches lack rigour in assessing causality. This book proposes how realist evaluation methods may be incorporated within randomised controlled trials and systematic reviews. This enables evaluations and evidence synthesis to benefit from the more nuanced questions posed within realist enquiry while maintaining rigour in assessing causality.

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Produktdetails

• Verlag: Cambridge University Press
• Erscheinungstermin: 28. Februar 2024
• ISBN-13: 9781009456623
• Artikelnr.: 70914504

Autorenporträt

Chris Bonell is Professor of Public Health & Sociology in the Department of Public Health, Environments and Society, London School of Hygiene and Tropical Medicine. His research mainly focuses on adolescent health, sexual health and violence. He was involved in scientific advice to the UK government during the Covid-19 pandemic, particularly in the areas of communication strategies and school interventions.

Inhaltsangabe

1. Introduction
2. Why are trials and systematic reviews necessary but insufficient to inform health policy?
3. Realist critiques and manifesto for evaluation and reviews
4. Building realist theory in evaluations
5. Refining realist theory through process evaluations
6. Testing realist theory through trials or other evaluation designs
7. Building and refining realist theory in systematic reviews
8. Testing realist theory through synthesising outcome evaluations
9. Using evidence to inform intervention scale-up and transfer
10. Using evidence to refine middle range theory
Conclusions.